Instruction Manual

3B SCIENTIFIC

PHYSICS

Piston vacuum pump U8421210

Instruction sheet

10/10 ALF

1 Vacuum hose

2 Foot stirrup

3 Pump housing

4 Hose connection

5 Handle

1. Safety instructions

Caution: danger of overturning or breakage if used

in an improper manner.

• Place your foot firmly on the stirrup provided

for this purpose.

• Do not put your weight on or bend over the

pump or the piston rod.

• Carefully select the distance between the pump

and the experimental apparatus to ensure that the

vacuum hose is not ripped out or disconnected.

2. Description

The piston vacuum pump can be used for all vac-

uum experiments in which a final pressure of

400 hPa is required.

This vacuum pump operates on the principle of a

double-stroke piston pump. Air is pumped out of

the experiment apparatus both during the upward

and the downward movement of the piston.

2.1 Scope of delivery

1 Piston vacuum pump

1 Vacuum hose, 5 mm diam.

3. Technical data

Final pressure: 400 hPa

Hose connection: 5 mm diam.

Dimensions: 160 x 235 x 560 mm

Weight: approx. 1.7 kg

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3B SCIENTIFIC® PHYSICS Piston vacuum pump U8421210 Instruction sheet 10/10 ALF 1 2 3 4 5 Vacuum hose Foot stirrup Pump housing Hose connection Handle This vacuum pump operates on the principle of a double-stroke piston pump. Air is pumped out of the experiment apparatus both during the upward and the downward movement of the piston. 1. Safety instructions Caution: danger of overturning or breakage if used in an improper manner. • Place your foot firmly on the stirrup provided for this purpose.
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4. Sample experiment 4.1 Propagation of sound waves in air In order to conduct this experiment, the following apparatus is additionally required. 1 Vacuum cylinder U8421230 1 Base plate U8421225 1 Electric doorbell U21854 1 AC/DC Power Supply U33030 Experiment leads 5. Maintenance Make sure that the sealing rings are always properly lubricated. To do so, carry out the following steps: • Unscrew the lid and remove it along with the piston. If necessary, clean and lubricate these components.